<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>事件处理</title>
</head>
<body>
	<!-- 准备好一个“容器” -->
	<div id="test"></div>
	
	<!-- 引入react核心库 -->
	<script type="text/javascript" src="../js/react.development.js"></script>
	<!-- 引入react-dom，用于支持react操作DOM -->
	<script type="text/javascript" src="../js/react-dom.development.js"></script>
	<!-- 引入babel，用于将jsx转为js -->
	<script type="text/javascript" src="../js/babel.min.js"></script>

	<script type="text/babel">
		//创建组件
		class Demo extends React.Component{
			myRef=React.createRef();
           
            showData=(event)=>{
                console.log(event.target);
                alert(this.myRef.current.value);
            }
            // 展示右侧输入框数据
            showData2=(event)=>{
                console.log(event.target);
                alert(event.target.value)
            }
            render(){
                return (
                    <div>
                        <input ref={this.myRef} type="text" placeholder="点击按钮提示数据"/>
                        <button onClick={this.showData}>点我显示数据</button>
                        <input onBlur={this.showData2} type="text" placeholder="失去焦点展示数据"/>
                    </div>
                   
                )
            }
			
		}
		//渲染组件到页面
		ReactDOM.render(<Demo a="1" b="2"/>,document.getElementById('test'))
	</script>
</body>
</html>